• 한국항해항만학회지
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• 제33권5호
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• pp.369-374
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• 2009

최근 워터프런트의 개방성과 자연환경을 만끽하기 위한 중요한 공간으로서 오픈스페이스와 이에 연계된 노천카페 및 야외레스토랑의 계획이 많아지고 있다. 그러나 워터프런트는 낮은 기온, 강풍, 강한 일사 등 도심 및 내륙지역과는 다른 기후특성을 가지고 있기 때문에 노천카페, 야외레스토랑 등을 계획할 때에는 대상 워터프런트의 기후특성, 특히 풍환경에 대한 검토가 필요하다. 본 연구는 부산의 대표적 워터프론트인 해운대, 수영만, 광안리 지역을 대상으로 오픈스페이스와 노천카페 및 야외레스토랑 계획을 위한 워터프런트의 풍환경에 대해 검토하였다. 검토경과를 요약하면 아래와 같다. 1)해운대-광안리까지의 워터프런트는 야외레스토랑 등에 적합한 지역이다. 2)3월말에서 11월 까지가 야외레스토랑 등을 이용하기에 적합한 시기이다.

• KIEAE Journal
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• 제8권6호
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• pp.79-87
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• 2008

The purpose of this study is to identify the planning features of apartments that are people-friendly, nature-friendly and ones that improve the quality of the apartments through sustainable design characteristics found in the apartment community space. This study found the sustainable design characteristics through the case of 8 environment-friendly apartment in the Seoul-Gyeunggi area. Sustainable design was categorized into three areas a) social sustainability b) economic sustainability c) ecological sustainability. The major findings are summarized as follows: First, socially sustainable design which included plans for various types of squares, spaces for pedestrians showed high application of universal design plans. While, plans to maximize open spaces that facilitate the social exchanges among residents showed low application. Second, economically sustainable design showed high application in terms of access to public transportation and bicycle storage facilities. However, planning factors such as alternative energy facilities, recyclable materials, reuse of rainwaterand heavy water showed low application. Third, environmentally sustainable design included high application of promenades, artificially created green space and various types of water space. On the other hand, nature study centers, biotope and environment friendly parking space showed low application.

• KIEAE Journal
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• 제14권4호
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• pp.103-109
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• 2014

The purpose of this study was to evaluate the usability and satisfaction of space to which positive elements in Leed-Certified Office Building are applied. The study was conducted using the three-step approach. The first step was to understand the building and identify the issues which included the analysis of floor plans, documentations, and the interview with designers and facility managers. The second step was FGI(Focus Group Interviews), which were conducted with mixed employees of rank and location of workplace. Finally, a web-based questionnaire survey was conducted on the 319 executives and employees. Methods of analysis used were quantitative analysis of questionnaire, qualitative analysis of open ended free-answer, and FGI in the second step. Satisfaction, preference, and comfort level were studied using cross tab, co-relation, ANOVA for quantitative analysis. The results of this study are as follows: First, lobby and atrium are representative elements that are functioning positively and it is recognized as sustainable spaces being utilized by users. Second, there are several dead spaces like green shaft, roof garden and sunken space although they can contribute to Leed-certification. Third, there are some problematic spaces such as the O.A. room and the urinals even though they contribute to the Leed-certification.

• Journal of Forest and Environmental Science
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• 제31권4호
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• pp.288-296
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• 2015

In many very high density cities in Asia in which there is limited area to expand, growth is forced upward as well as outward. Densely packed detached houses and low-rise buildings are replaced by lower density high-rises, leaving open spaces between high-rise buildings. Through this process, areas that formerly did not have much green space gain valuable green spaces, and new ecological corridors and patches are created. In this study, the demographic and housing-type changes of Wonju City were delineated using land use maps, aerial images, census data, and other administrative data. Green area changes were calculated using land cover data derived from multi-year Landsat TM satellite imagery. The values were then compared against demographic and housing-type changes for each administrative unit. The overall results showed a decrease of forested area in the city and an increase of developed area. Urban sprawl was clearly visible in many of the suburban areas. However, as expected, we also detected areas in which greenness did not decrease when the population greatly increased. These areas were characterized by residential building complexes of ten or more stories. If an equal number of housing units had been built as detached houses, these areas would not have kept as much green space. Our research result showed that high-density and high-rise residential structures can offer an alternative means to protect or create urban green spaces in high-density urban environments.

• 한국실내디자인학회논문집
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• 제39호
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• pp.83-91
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• 2003

The planning of circulation area and circulation path are very important elements for layout of interior space of housing. This study is, therefore, aimed at synthetical review of that area from a functional, structural and socio-cultural point of view as well as typological analysis of that area. In the interior space of housing the networking of spaces according to the circulation route imply divers aspects of independent or dependant significances. It is thus, closely related with to whether circulation area open or closed, whether circulation path concentrated or distributed, and whether it passes Individual rooms or not. With regard to relationship with public and private spaces, there are many grounds for combining each other. This study also tried to develope program for planning of circulation system, utilizing typological analysis of them. At the same time this study suggests examples for layout of housing spaces. It is expected that the results represented In the form of systematic diagram will deserve to be a tool for providing an appropriate solution to the problem of diversity of user's needs.

• 정보처리학회논문지:컴퓨터 및 통신 시스템
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• 제11권3호
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• pp.91-98
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• 2022

최근 가상공간과 물리공간이 디지털 융합된 메타버스에 대한 관심이 높아지면서 물리공간에서의 많은 활동이 웹 기반의 가상공간에서 이루어질 전망이다. 따라서 분산 식별자 기반 가상공간 환경에서 사생활과 상호 신뢰를 확보할 수 있는 자기주권 신원시스템에 대한 연구가 요구된다. 본 논문에서는 분산 식별자 기반 자기주권 신원시스템을 위해 Hyperledger Indy와 DIDComm 오픈 소스를 기반으로 분산 식별자, 비대칭 키, DID 문서를 생성하여 블록체인과 지갑에 등록하는 절차, DIDComm 메시지로 구성된 신뢰할 수 있는 통신 방법을 개발하고 검증하였다. 이는 통신 참여자 간의 신뢰를 위한 추가적인 정보 교환 및 검증 가능한 자격증명을 교환하여 서로를 검증하는데 활용이 가능하다

• 한국멀티미디어학회논문지
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• 제19권2호
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• pp.146-154
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• 2016

This paper presents methods to analyze the topological structures of the spaces composed of patches extracted from waveform signals, which can be applied to the classification of signals. Commute time embedding is performed to transform the patch sets into the corresponding geometries, which has the properties that the embedding geometries of periodic or quasi-periodic waveforms are represented as closed curves on the low dimensional Euclidean space, while those of aperiodic signals have the shape of open curves. Persistent homology is employed to determine the topological invariants of the simplicial complexes constructed by randomly sampling the commute time embedding of the waveforms, which can be used to discriminate between the groups of waveforms topologically.

• 대한수학회지
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• 제39권2호
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• pp.277-287
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• 2002

Let B be the open unit ball with center 0 in the complex space $C^n$. For each q>0, B$_{q}$ consists of holomorphic functions f : B longrightarrow C which satisfy sup z $\in$ B $(1-\parallel z \parallel^2)^q\parallel\nabla f(z)\parallel < \infty$ In this paper, we will show that functions in weighted Bloch spaces $B_{q}$ (0 < q < 1) satifies the following Lipschitz type result for Bergman metric $\beta$: ｜f(z)-f($\omega$)｜< $C\beta$(z, $\omega$) for some constant C.

• Kyungpook Mathematical Journal
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• 제47권2호
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• pp.155-164
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• 2007

It is the objective of this paper to study further the notion of ${\Lambda}_s$-semi-${\theta}$-closed sets which is defined as the intersection of a ${\theta}$-${\Lambda}_s$-set and a semi-${\theta}$-closed set. Moreover, introduce some low separation axioms using the above notions. Also we present and study the notions of ${\Lambda}_s$-continuous functions, ${\Lambda}_s$-compact spaces and ${\Lambda}_s$-connected spaces.

• KIEAE Journal
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• 제7권4호
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• pp.75-80
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• 2007

The purpose of this study is to analyze architectural plans of lower part of super tall mixed-use residential building for understanding its functions for urban. The area of this research are limited to super tall mixed-use residential building which were built in Seoul, Kyoung-gi area, and new towns. For this purpose, theories for super tall mixed-use residential building and non-housing parts were researched, and characteristics of selected cases for field research were analyzed by studying drawing materials. The research focused on scale, type of building, included programs for public spaces, and characteristics of location. As a result, every cases were designed as 'outdoor transition zone-centered type', and for urban function, non-housing facilities were condensed to increase convenience. In addition, ratio of non-housing part were incresesed with public spaces design for residents, and various programs were inserted.